For existing tree boxes, openings must be measured prior to fabrication to ensure that fences will fit just inside the boxes and side panels must be fabricated with a setback of approx. 6” from back edge of existing curb to allow sufficient room for car doors to swing

For new tree boxes installations, fence dimensions shall be standardized based on length and width of proposed openings (e.g. 4’ x 9’, 6’ x 10’, etc.), however, the setback for the side panels shall remain consistent at 6” from back edge of curb to allow sufficient room for car doors to swing

Concrete footings shall be at minimum 10” wide by 24” deep and the concreting shall be performed in accordance with the manufacturer’s specifications

Requirements:

Strength: 3000 psi with a slump of 3

Air entrainment: 5% to 8%

Aggregate size: ¾” max.

Mortar compressive strength at 28 days: 32 MPa

Meets ASTM C 150, Type 1

Finished concrete shall be two (2) inches below existing grade and pitched to direct water away from posts.

UFA Preferred Tree Fencing

Tree Fence Model (close-up)

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